AMDGPU: Refactor argument lowering

Split into smaller functions and prepare for handling
non-entry functions.

llvm-svn: 299998

1 files changed, 10 insertions, 3 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
index ca492b98970..a84f3e274f8 100644
--- a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
+++ b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
@@ -113,6 +113,8 @@ class SIMachineFunctionInfo final : public AMDGPUMachineFunction {
 
   // Graphics info.
   unsigned PSInputAddr;
+  unsigned PSInputEnable;
+
   bool ReturnsVoid;
 
   // A pair of default/requested minimum/maximum flat work group sizes.
@@ -134,9 +136,6 @@ class SIMachineFunctionInfo final : public AMDGPUMachineFunction {
 public:
   // FIXME: Make private
   unsigned LDSWaveSpillSize;
-  unsigned PSInputEna;
-
-
   unsigned ScratchOffsetReg;
   unsigned NumUserSGPRs;
   unsigned NumSystemSGPRs;
@@ -424,6 +423,10 @@ public:
     return PSInputAddr;
   }
 
+  unsigned getPSInputEnable() const {
+    return PSInputEnable;
+  }
+
   bool isPSInputAllocated(unsigned Index) const {
     return PSInputAddr & (1 << Index);
   }
@@ -432,6 +435,10 @@ public:
     PSInputAddr |= 1 << Index;
   }
 
+  void markPSInputEnabled(unsigned Index) {
+    PSInputEnable |= 1 << Index;
+  }
+
   bool returnsVoid() const {
     return ReturnsVoid;
   }